Cosmological Constraints from Sunyaev-Zel'dovich-selected Clusters with X-Ray Observations in the First 178 deg2 of the South Pole Telescope Survey
dc.contributor.author | Benson, B. A. | |
dc.contributor.author | de Haan, T. | |
dc.contributor.author | Dudley, J. P. | |
dc.contributor.author | Reichardt, C. L. | |
dc.contributor.author | Aird, K. A. | |
dc.contributor.author | Andersson, K. | |
dc.contributor.author | Armstrong, R. | |
dc.contributor.author | Ashby, Matthew L N | |
dc.contributor.author | Bautz, M. | |
dc.contributor.author | Bayliss, Matthew | |
dc.contributor.author | Bazin, G. | |
dc.contributor.author | Bleem, L. E. | |
dc.contributor.author | Brodwin, M. | |
dc.contributor.author | Carlstrom, J. E. | |
dc.contributor.author | Chang, C. L. | |
dc.contributor.author | Cho, H. M. | |
dc.contributor.author | Clocchiatti, A. | |
dc.contributor.author | Crawford, T. M. | |
dc.contributor.author | Crites, A. T. | |
dc.contributor.author | Desai, S. | |
dc.contributor.author | Dobbs, M. A. | |
dc.contributor.author | Foley, R. J. | |
dc.contributor.author | Forman, William R. | |
dc.contributor.author | George, E. M. | |
dc.contributor.author | Gladders, M. D. | |
dc.contributor.author | Gonzalez, A. H. | |
dc.contributor.author | Halverson, N. W. | |
dc.contributor.author | Harrington, N. | |
dc.contributor.author | High, F. W. | |
dc.contributor.author | Holder, G. P. | |
dc.contributor.author | Holzapfel, W. L. | |
dc.contributor.author | Hoover, S. | |
dc.contributor.author | Hrubes, J. D. | |
dc.contributor.author | Jones, C. | |
dc.contributor.author | Joy, M. | |
dc.contributor.author | Keisler, R. | |
dc.contributor.author | Knox, L. | |
dc.contributor.author | Lee, A. T. | |
dc.contributor.author | Leitch, E. M. | |
dc.contributor.author | Liu, J. | |
dc.contributor.author | Lueker, M. | |
dc.contributor.author | Luong-Van, D. | |
dc.contributor.author | Mantz, A. | |
dc.contributor.author | Marrone, D. P. | |
dc.contributor.author | McDonald, M. | |
dc.contributor.author | McMahon, J. J. | |
dc.contributor.author | Mehl, J. | |
dc.contributor.author | Meyer, S. S. | |
dc.contributor.author | Mocanu, L. | |
dc.contributor.author | Mohr, J. J. | |
dc.contributor.author | Montroy, T. E. | |
dc.contributor.author | Murray, S. S. | |
dc.contributor.author | Natoli, T. | |
dc.contributor.author | Padin, S. | |
dc.contributor.author | Plagge, T. | |
dc.contributor.author | Pryke, C. | |
dc.contributor.author | Rest, A. | |
dc.contributor.author | Ruel, Jonathan | |
dc.contributor.author | Ruhl, J. E. | |
dc.contributor.author | Saliwanchik, B. R. | |
dc.contributor.author | Saro, A. | |
dc.contributor.author | Sayre, J. T. | |
dc.contributor.author | Schaffer, K. K. | |
dc.contributor.author | Shaw, L. | |
dc.contributor.author | Shirokoff, E. | |
dc.contributor.author | Song, J. | |
dc.contributor.author | Spieler, H. G. | |
dc.contributor.author | Stalder, Brian A | |
dc.contributor.author | Staniszewski, Z. | |
dc.contributor.author | Stark, Antony A. | |
dc.contributor.author | Story, K. | |
dc.contributor.author | Stubbs, Christopher William | |
dc.contributor.author | Suhada, R. | |
dc.contributor.author | van Engelen, A. | |
dc.contributor.author | Vanderlinde, K. | |
dc.contributor.author | Vieira, J. D. | |
dc.contributor.author | Viklinin, Alexey A. | |
dc.contributor.author | Williamson, R. | |
dc.contributor.author | Zahn, O. | |
dc.contributor.author | Zenteno, A. | |
dc.date.accessioned | 2014-03-04T13:25:04Z | |
dc.date.issued | 2013 | |
dc.identifier | Quick submit: 2014-01-17T10:57:41-05:00 | |
dc.identifier.citation | Benson, B. A., T. de Haan, J. P. Dudley, C. L. Reichardt, K. A. Aird, K. Andersson, R. Armstrong, et al. 2013. “Cosmological Constraints from Sunyaev-Zel'dovich-selected Clusters with X-Ray Observations in the First 178 deg2 of the South Pole Telescope Survey.” The Astrophysical Journal 763 (2) (February 1): 147. doi:10.1088/0004-637x/763/2/147. http://dx.doi.org/10.1088/0004-637X/763/2/147. | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://nrs.harvard.edu/urn-3:HUL.InstRepos:11857775 | |
dc.description.abstract | We use measurements from the South Pole Telescope (SPT) Sunyaev-Zel'dovich (SZ) cluster survey in combination with X-ray measurements to constrain cosmological parameters. We present a statistical method that fits for the scaling relations of the SZ and X-ray cluster observables with mass while jointly fitting for cosmology. The method is generalizable to multiple cluster observables, and self-consistently accounts for the effects of the cluster selection and uncertainties in cluster mass calibration on the derived cosmological constraints. We apply this method to a data set consisting of an SZ-selected catalog of 18 galaxy clusters at z > 0.3 from the first 178 deg2 of the 2500 deg2 SPT-SZ survey, with 14 clusters having X-ray observations from either Chandra or XMM-Newton. Assuming a spatially flat ΛCDM cosmological model, we find the SPT cluster sample constrains σ8(Ω m /0.25)0.30 = 0.785 ± 0.037. In combination with measurements of the cosmic microwave background (CMB) power spectrum from the SPT and the seven-year Wilkinson Microwave Anisotropy Probe data, the SPT cluster sample constrains σ8 = 0.795 ± 0.016 and Ω m = 0.255 ± 0.016, a factor of 1.5 improvement on each parameter over the CMB data alone. We consider several extensions beyond the ΛCDM model by including the following as free parameters: the dark energy equation of state (w), the sum of the neutrino masses (Σm ν), the effective number of relativistic species (N eff), and a primordial non-Gaussianity (f NL). We find that adding the SPT cluster data significantly improves the constraints on w and Σm ν beyond those found when using measurements of the CMB, supernovae, baryon acoustic oscillations, and the Hubble constant. Considering each extension independently, we best constrain w = –0.973 ± 0.063 and the sum of neutrino masses Σm ν < 0.28 eV at 95% confidence, a factor of 1.25 and 1.4 improvement, respectively, over the constraints without clusters. Assuming a ΛCDM model with a free N eff and Σm ν, we measure N eff = 3.91 ± 0.42 and constrain Σm ν < 0.63 eV at 95% confidence. We also use the SPT cluster sample to constrain f NL = –220 ± 317, consistent with zero primordial non-Gaussianity. Finally, we discuss the current systematic limitations due to the cluster mass calibration, and future improvements for the recently completed 2500 deg2 SPT-SZ survey. The survey has detected ~500 clusters with a median redshift of ~0.5 and a median mass of ~2.3 × 1014 M ☉ h –1 and, when combined with an improved cluster mass calibration and existing external cosmological data sets will significantly improve constraints on w. | en_US |
dc.description.sponsorship | Astronomy | en_US |
dc.description.sponsorship | Physics | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | American Astronomical Society | en_US |
dc.relation.isversionof | doi:10.1088/0004-637x/763/2/147 | en_US |
dash.license | LAA | |
dc.title | Cosmological Constraints from Sunyaev-Zel'dovich-selected Clusters with X-Ray Observations in the First 178 deg2 of the South Pole Telescope Survey | en_US |
dc.type | Journal Article | en_US |
dc.date.updated | 2014-01-17T15:59:04Z | |
dc.description.version | Version of Record | en_US |
dc.rights.holder | BA Benson, T de Haan, JP Dudley, CL Reichardt, KA Aird, K Andersson, R Armstrong, MLN Ashby, M Bautz, M Bayliss, G Bazin, LE Bleem, M Brodwin, JE Carlstrom, CL Chang, HM Cho, A Clocchiatti, TM Crawford, AT Crites, S Desai, MA Dobbs, RJ Foley, WR Forman, EM George, MD Gladders, AH Gonzalez, NW Halverson, N Harrington, FW High, GP Holder, WL Holzapfel, S Hoover, JD Hrubes, C Jones, M Joy, R Keisler, L Knox, AT Lee, EM Leitch, J Liu, M Lueker, D Luong-Van, A Mantz, DP Marrone, M McDonald, JJ McMahon, J Mehl, SS Meyer, L Mocanu, JJ Mohr, TE Montroy, SS Murray, T Natoli, S Padin, T Plagge, C Pryke, A Rest, J Ruel, JE Ruhl, BR Saliwanchik, A Saro, JT Sayre, KK Schaffer, L Shaw, E Shirokoff, J Song, HG Spieler, B Stalder, Z Staniszewski, AA Stark, K Story, CW Stubbs, R Suhada, A van Engelen, K Vanderlinde, JD Vieira, A Vikhlinin, R Williamson, O Zahn, A Zenteno | |
dc.relation.journal | Astrophysical Journal | en_US |
dash.depositing.author | Stubbs, Christopher William | |
dc.date.available | 2014-03-04T13:25:04Z | |
dc.identifier.doi | 10.1088/0004-637x/763/2/147 | * |
dash.authorsordered | false | |
dash.contributor.affiliated | Ashby, Matthew | |
dash.contributor.affiliated | Bayliss, Matthew | |
dash.contributor.affiliated | Forman, William | |
dash.contributor.affiliated | Stalder, Brian | |
dash.contributor.affiliated | Ruel, Jonathan | |
dash.contributor.affiliated | Viklinin, Alexey | |
dash.contributor.affiliated | Stark, Antony | |
dash.contributor.affiliated | Stubbs, Christopher |
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